After following the instructions in this post (How do I change the login screen background in macOS Mojave?), I still could not change the login screen on start up. It works when I log out, but not when the computer restarts.
Any other solutions?
login-screenmacosmojave
After following the instructions in this post (How do I change the login screen background in macOS Mojave?), I still could not change the login screen on start up. It works when I log out, but not when the computer restarts.
Any other solutions?
Best Answer
This solution can be found on this page on the link bellow at Apple:
https://discussions.apple.com/thread/8556569
If you wanted to change the lockscreen (which is different the the login screen), you'll see one or more folders inside this directory:
/Library/Caches/Desktop Pictures/
From there you simply need to rename your image to:
lockscreen.png
If there are multiple folders, you'll have to figure out which one your account is using. Ironically, you'll see the lock screen when you logout, but not when you click on Lock Screen.